Lenovo XT92 Bluetooth 5.1 TWS Gaming Wireless Bluetooth Earphone(Black)

1. Bluetooth version: 5.12. Transmission distance: 10 meters3. Frequency response range: 20Hz-20HKz4. Speaker size: 10mm5. Speaker impedance: 32 ohm +/-15%6. Signal-to-noise ratio: greater than or equal to 102db7. Microphone sensitivity: -42dB+/-3dB8. Charging interface: Type-C9. Life time: about 32 hours10. Earphone full charge time: about 1.5 hours11. Replenishment times of the charging box: about 3-4 times12. Voice call, intelligently eliminate noise13. It can be used with both ears and single ear. It can be connected when picked up, which is convenient to use14. Ergonomic design, comfortable to wear